Combination powder applying and/or infrared drying attachment for printing presses
US4882992A · kind A · utility
24Cited by
8References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 28, 1989 |
| Grant date | Nov 28, 1989 |
| Priority date | — |
| Expiry date | Apr 28, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41F23/0443
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The attachment is selectively usable to apply heat, anti-offset powder, or both heat and powder to freshly printed sheets passing to the sheet collection station of a printing press. Operation of the heat and/or powder applying assemblies is changed automatically to compensate for changes in the press speed. The location at which heat is applied to the sheets is upstream from that at which powder is applied, and is spaced from the collection station. Shields and air currents assist in regulating heat transfer. A compact housing assembly supports both heat and powder applying components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.